<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>{% block title_block %}{% endblock %}</title>
</head>
<body>
    {% include 'common/header.html' %}
    <section class="section">
        {% block body_block %}
            <p>这是父模板保留的公共需要代码</p>
        {% endblock %}
    </section>
    {% include 'common/footer.html' %}
</body>
</html>